Misplaced Pages

#558441

69-542: They collectively serve as the successor to the Samsung Galaxy S21 series. The first three smartphones were unveiled at Samsung's Galaxy Unpacked event on 9 February 2022. The S22 series consists of the base Galaxy S22 model, the plus-sized Galaxy S22+ model, and the camera-note-focused Galaxy S22 Ultra model. The S22 Ultra serves as the official successor to the Samsung Galaxy Note 20 and

138-558: A 12 MP ultrawide sensor. The front-facing camera uses a 10 MP sensor on the S21 and S21+, 32 MP sensor on the S21 FE, and a 40 MP sensor on the S21 Ultra. 4K@60 recording is supported on the ultrawide camera on the S21, S21+, and S21 FE and all cameras on the S21 Ultra. All cameras are Samsung except 12MP Ultra Wide on S21 Ultra and 10MP front on S21 and S21+, which are both made by Sony, and

207-512: A 12 GB option with 256 GB, 512 GB and 1 TB options for internal storage. Unlike the S21 Ultra, the S22 Ultra doesn't feature a model with a 16 GB RAM variant. All three models lack a microSD card slot. The S22, S22+, and S22 Ultra contain non-removable 3,700 mAh, 4,500 mAh, and 5000 mAh Li-Po batteries respectively. The S22 supports wired charging over USB-C at up to 25W (using USB Power Delivery ) while

276-526: A 50 MP wide sensor, a 10 MP telephoto sensor with 3x optical zoom, and a 12 MP ultrawide sensor. The S22 Ultra retains its predecessor's 108 MP sensor with 12-bit HDR. It also has two 10 MP telephoto sensors with 3x and 10x optical zoom as well as a 12 MP ultrawide sensor. The front-facing camera uses a 10 MP sensor on the S22 and S22+, and a 40 MP sensor on the S22 Ultra. The Galaxy S22 series can record HDR10+ video and support HEIF . The Galaxy S22 series supports

345-698: A Qi charging cradle as a factory option on its 2013 Avalon Limited , with Ssangyong the second car manufacturer to offer a Qi option, also in 2013. As the Qi standard gained popularity, Qi Hotspots began to arise in places such as coffee shops, airports, sports arenas, etc. In 2012, The Coffee Bean and Tea Leaf , a major US coffee chain, announced plans to install inductive charging stations at selected major metropolitan cities, as did Virgin Atlantic , for United Kingdom's London Heathrow Airport , and New York City's John F. Kennedy International Airport . In 2015,

414-524: A Qi charging pad, which can be effective over distances up to 4 cm (1.6 in). The Qi standard is developed by the Wireless Power Consortium . As a universal, open standard Qi-enabled devices are able to connect to Qi chargers from any manufacturer. Qi was first released in 2008; by 2017, it was incorporated into more than 200 smartphones, tablets and other devices. As of December 2023 , there are 351 manufacturers working with

483-424: A bundle of transmitting coils is used to generate a magnetic field at the location of the receiving coil only. Another example uses mechanical means to move a single transmitting coil underneath the receiving coil. A third option is to use a technique called Multiple Cooperative Flux Generators . Figure 1-1 illustrates the basic system configuration. As shown, a power transmitter includes two main functional units –

552-506: A circular cutout in the top center for the front selfie camera. The S21 and S21 FE's back panel is reinforced poly-carbonate (plastic) similar to the S20 FE and Note 20 while the S21+ and S21 Ultra use Gorilla Glass Victus. The rear camera array has been integrated into the phone body except for the S21 FE which is made out of reinforced poly-carbonate integrated instead on the back cover and has

621-551: A design similar to preceding S series phones, with an Infinity-O display containing a circular cutout in the top center for the front selfie camera. All three models use Gorilla Glass Victus+ for the back panel, unlike the S21 series which had plastic on the smaller S21. The rear camera array on the S22 and S22+ has a metallic surround, while the S22 Ultra has a separate lens protrusion for each camera element. The S22 line comprises three models with various hardware specifications. Except for some African and all European countries that use

690-494: A host of other improvements over the other models, including a more advanced camera setup highlighted by its 108 MP main sensor with laser auto-focus and a higher resolution 1440p display. The S21 Ultra is also the first phone in the Galaxy S series to support the S Pen , albeit sold separately and with limited functionality. The Galaxy S21 series has a design similar to its predecessor, with an Infinity-O display containing

759-404: A larger form factor, with a 6.6-inch (168 mm) screen, faster charging and a larger battery capacity. The Galaxy S22 Ultra has a 6.8-inch (173 mm) screen and the largest battery capacity in the lineup, with a more advanced camera setup and a higher resolution display compared to the S22 and S22+, as well as an embedded S Pen – the first in the S Series as a whole. The Galaxy S22 series has

SECTION 10

#1732787776559

828-550: A metallic surround; the S21 Ultra has a carbon fiber camera surround for exclusive colors. The S21 line comprises four models with various hardware specifications. International and Korean models of the S21 utilize the Exynos 2100 SoC, while the U.S. , Canadian, Chinese, Taiwanese, Hong Kong and Japanese models utilize the Qualcomm Snapdragon 888 . The U.S., Canadian, Chinese, and international (European) models of

897-459: A microSD card slot, which was present in the S20 series. The S21, S21 FE, S21+, and S21 Ultra contain non-removable 4000 mAh, 4,500 mAh, 4800 mAh, and 5000 mAh batteries respectively. All four models support wired charging over USB-C at up to 25W (using USB Power Delivery ) as well as Qi inductive charging up to 15W. The phones also can charge other Qi-compatible devices from

966-431: A power conversion unit and a communications and control unit. The diagram shows the transmitting coil (array) generating the magnetic field as part of the power conversion unit. The control and communications unit regulates the transferred power to the level that the power receiver requests. The diagram also demonstrates that a Base Station may contain numerous transmitters, allowing for multiple Mobile Devices to be placed on

1035-432: A separate version exist for enterprise use. The first three S21 series smartphones were updated to Android 12 and One UI 4 on 15 November 2021. Samsung added a "repair mode" to its Galaxy S21 on 28 July 2022, hiding users' data when they entrust an ailing device to a technician. The One UI 5 update based on Android 13 began rolling out to S21 devices on 7 November 2022. The Verge ' s review, by Dieter Bohn, praised

1104-404: A similar camera setup to its predecessor but benefits from improved software and image processing. It has a 12 MP wide sensor, an 8 MP telephoto sensor with 3x optical zoom, and a 12 MP ultrawide sensor. The S21 Ultra has a new HM3 108 MP sensor with several enhancements over the previous HM1 108 MP sensor, including 12-bit HDR. It also has two 10 MP telephoto sensors with 3x and 10x optical zoom and

1173-605: A survey found that 76% of people surveyed in the United States and China were aware of wireless charging (an increase from 36% the previous year), and 20% were using it – however, only 16% of those were using it daily. Furniture retailer IKEA introduced lamps and tables with integrated wireless chargers for sale in 2015, and the Lexus NX gained an optional Qi charging pad in the center console. An estimated 120 million wirelessly charging phones were sold that year, notably

1242-551: A user must place the Mobile Device on a certain location of the Base Station's surface. For this purpose, the Mobile Device provides an alignment aid that is appropriate to its size, shape, and function. The second concept – referred to as free positioning – does not require the user to place the Mobile Device in direct alignment with the transmitting coil. There are several ways to achieve free positioning. In one example

1311-558: Is a series of high-end Android-based smartphones developed, marketed, and manufactured by Samsung Electronics as part of its Galaxy S series . They collectively serve as the successor to the Samsung Galaxy S20 series. The first three smartphones were unveiled at Samsung's Galaxy Unpacked event on 14 January 2021, while the Fan Edition model was unveiled at Samsung's CES on 3 January 2022. The S21 series consists of

1380-508: Is also now able to use 120 Hz at 1440p unlike its predecessor (which was limited to 120 Hz at only 1080p). The S21 and S21+ offer 8 GB of RAM with 128 GB and 256 GB options for internal storage. The S21 Ultra has 12 GB of RAM with 128 GB and 256 GB options as well as a 16 GB option with 512 GB of internal storage. The S21 FE offers 6 GB and 8 GB of RAM with 128 GB and 256 GB options for internal storage. All four models lack

1449-482: Is marketed as Ultra Wideband by Verizon ). Samsung uses this technology for their new "SmartThings Find" feature and the Samsung Galaxy SmartTag+ . The S21 and S21+ have similar camera setups to their predecessors but benefit from improved software and image processing. Both have a 12 MP wide sensor, a 64 MP telephoto sensor with 3x hybrid zoom, and a 12 MP ultrawide sensor. The S21 FE also has

SECTION 20

#1732787776559

1518-439: Is one of the best you can get on Android". Matt Sweder at Techradar gave a positive review noting its "mesmerizing design" calling it "Samsung’s best-looking phone ever" and how "phenomenally powerful" the camera is, but also went on to criticize the price and lack of microSD card slot, and questioning the stylus support, which is a separate purchase, with nowhere to put the S Pen on the phone itself. Criticism has been aimed at

1587-463: Is placed in a series resonant circuit. This series resonant circuit is then driven by an H-bridge switching arrangement from the DC source; at full power, the voltage in the capacitor can reach 50 volts. Power control is automatic; the Qi specification requires that the actual voltage applied be controllable in steps at least as small as 50 millivolts. Rather than down-regulate the charging voltage in

1656-569: The Exynos 2200 , with a new gpu with AMD, all models outside these regions use the Qualcomm Snapdragon 8 Gen 1 including Argentina, Australia, Canada, China, India, Mexico and the United States. The S22 series feature "Dynamic AMOLED 2X" displays with HDR10+ support and "dynamic tone mapping" technology. All models use a second-generation ultrasonic in-screen fingerprint sensor . The S22 and S22+ offer 8 GB of RAM with 128 GB and 256 GB options for internal storage. The S22 Ultra has 8 GB of RAM with 128 GB as well as

1725-468: The Samsung Galaxy S6 , which supported both Qi and the competing Power Matters Alliance standards. However, the existence of several competing wireless charging standards was still seen as a barrier to adoption. By early 2017, Qi had displaced other competing standards such as Rezence . On September 12, 2017, Apple announced that their new smartphones, the iPhone 8 , iPhone 8 Plus , and

1794-470: The iPhone 15 models and iPhone 15 Pro models to support the fast 15W Qi2-certified wireless charging. Prior to the launch of the iOS 17.2 , Apple added the fast 15W Qi2-certified wireless charging support for the iPhone 13 models, iPhone 13 Pro models, iPhone 14 models and iPhone 14 Pro models, but all the iPhone 12 models and iPhone 12 Pro models have limited support to the 5W Qi-certified wireless charging. On September 9, 2024, alongside

1863-403: The iPhone X , would support the Qi standard. Since then, every new iPhone version has supported the Qi wireless charging standard. Apple also announced plans to expand the standard with a new protocol called AirPower which would have added the ability to charge multiple devices at once; however, this was canceled on March 29, 2019. By the initial launch of the iOS 17 in 2023, Apple launched

1932-427: The (plastic) polycarbonate back the S21 originally had. The S22 and S22+ contain comparable software, composition, and hardware to the previous year's models, with minor distinctions. The S22 Ultra underwent massive reconstruction, with the phone serving as the successor to the discontinued Galaxy Note series . The device features a rectangular body, higher resolution display, and advanced camera system, and most notably,

2001-665: The 8MP Telephoto on the S21 FE which is made by SK Hynix. The Galaxy S21 series can record HDR10+ video and support HEIF . Users discovered that the Scene Optimizer included with Samsung Galaxy S21 and later phones use artificial intelligence to identify the Moon and add details that the camera is not capable of capturing, based on a library of existing moon photos. However, this was disputed by Samsung, claiming that they have an AI enhancement algorithm that adds detail to your moon photos. The Samsung Galaxy S21 series supports

2070-458: The Base Station, which is connected to a power source and provides inductive power, and Mobile Devices, which consume inductive power. The Base Station contains a power transmitter that comprises a transmitting coil that generates an oscillating magnetic field ; the Mobile Device contains a power receiver holding a receiving coil. The magnetic field induces an alternating current in the receiving coil by Faraday's law of induction . Close spacing of

2139-655: The Extended Power Profile's 15 W. Currently, only Samsung has published their compliance test. Other phone companies that use proprietary standards for fast wireless charging include Apple, Huawei and Google. Nokia first adopted Qi in its Lumia 920 , and Samsung Mobile on the Galaxy S3 (supported via a retrofittable official Samsung back cover accessory) in 2012, the Google/LG Nexus 4 followed later that year. Toyota began offering

Samsung Galaxy S22 - Misplaced Pages Continue

2208-676: The GOS, recorded a loss of 45% in single-core performance and 28% in multi-core performance versus an undisguised copy of the utility on the S22+. In response, Geekbench has permanently delisted the entire S22, S21 and S10 lineup from its service. Samsung has since released an update allowing S22 users to disable GOS on their devices. Samsung Galaxy S21 Video: 8K @24fps, 4K @30/60fps, 1080p @30/60/120fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS S21 FE : S21 and S21+ : S21 Ultra : Sensors : The Samsung Galaxy S21

2277-740: The Galaxy S21 initially being the least expensive with a smaller screen size and a polycarbonate (plastic) back, which then is undercut later on by the Galaxy S21 FE with the same material minus the camera bump being also polycarbonate than metal. In contrast to the Galaxy S20+, the Galaxy S21+ is very similar to the S21 spec-wise, with the exception of a larger display, higher battery capacity, and glass back instead of plastic. The Galaxy S21 Ultra has an even larger screen size, battery, and

2346-465: The Galaxy S22+ and S22 Ultra support Wi-Fi 6E and Bluetooth 5.2 . The S22+ and S22 Ultra models also support Ultra Wideband (UWB) for short-range communications similar to Bluetooth (not to be confused with 5G mmWave, which is marketed as Ultra Wideband by Verizon ). Samsung uses this technology for their new "SmartThings Find" feature and the Samsung Galaxy SmartTag+ . The S22 and S22+ have

2415-612: The Note lineup, housing an integrated S-Pen. There are numerous upgrades the phones possess over the previous models, in addition to improved specifications, an enhanced camera system supporting 8K video recording (7680×4320) at 24 frames per second, and a super-resolution zoom of 30–100x, for the Ultra model. The three phones were released in the United States and Europe on 25 February 2022. The Galaxy S22, S22+, and S22 Ultra launch with prices at $ 799.99, $ 999.99, and $ 1199.99, respectively. It

2484-487: The Qi Baseline Power Profile (BPP). Regulation of the output voltage is provided by a digital control loop where the power receiver communicates with the power transmitter and requests more or less power. Communication is unidirectional from the power receiver to the power transmitter via backscatter modulation. In backscatter modulation, the power-receiver coil is loaded, changing the current draw at

2553-459: The Qi low-power specification in August 2009. The Qi specification can be downloaded freely after registration. Under the Qi specification, "low power" inductive transfers deliver power below 5 W using inductive coupling between two planar coils . These coils are typically 5 mm apart but can be up to 40 mm and possibly further apart. The Qi low-power specification has been renamed to

2622-429: The Qi specification, starts with a rectangular coil of wire 44 mm × 30 mm outside size, with 14 turns of wire, and with an above-coil magnetic shield. This coil is wired into a parallel resonant circuit with a pair of capacitors (of 127 nanofarads in series and 1.6 nanofarads in parallel). The power output is taken across the 1.6- nanofarad capacitor. In order to provide a digital communications channel back to

2691-460: The S21 FE use the Snapdragon 888, while Korean, Indian, Brazilian and Australian markets use Exynos 2100. The S21 series features "Dynamic AMOLED 2X" displays with HDR10+ support and "dynamic tone mapping" technology. All models except the S21 FE utilize a second-generation ultrasonic in-screen fingerprint sensor with the latter opting for an optical in-screen system instead. The S21 Ultra

2760-582: The S21 Ultra's punchy display, fast performance, long-lasting battery life and the general improvements to the camera system, likening the latter to that of the iPhone 12 Pro Max 's; however, Bohn did note that the phone's glass back is slightly more susceptible to minor scratches. Android Authority 's review by David Imel noted the Samsung's Galaxy S21 Ultra "is a powerhouse smartphone" and that "the camera system in Samsung Galaxy S21 Ultra

2829-496: The S21's battery power, which is branded as "Wireless PowerShare," at up to 4.5W. All four phones support 5G SA/NSA networks, The Galaxy S21, S21+, and S21 FE support Wi-Fi 6 and Bluetooth 5.0 , while the Galaxy S21 Ultra supports Wi-Fi 6E and Bluetooth 5.2 . The S21+ and S21 Ultra models also support Ultra Wideband (UWB) for short-range communications similar to NFC (not to be confused with 5G mmWave, which

Samsung Galaxy S22 - Misplaced Pages Continue

2898-460: The S22+ and S22 Ultra have faster 45W charging. Tests found there's no significant difference between the 45W and 25W charging speeds. All three have Qi inductive charging up to 15W. The phones also have the ability to charge other Qi-compatible devices from the S22's own battery power, which is branded as "Wireless PowerShare," at up to 4.5W. All three phones support 5G SA/NSA networks. The Galaxy S22 supports Wi-Fi 6 and Bluetooth 5.2 , while

2967-403: The Ultra model houses an embedded S-Pen, a signature feature of the Note series. The S22 Ultra serves as the high-end professional model of the lineup and successor to the S21 Ultra, while the base models succeed the S21 and S21+, respectively. The S22 line consists of three devices. The Galaxy S22 is the least expensive with a 6.1-inch (155 mm) screen. The Galaxy S22+ has similar hardware in

3036-696: The WPC also demonstrated a high-power specification, called "Ki", that will deliver up to 1 kW, allowing the powering of kitchen appliances among other high-power utilities. In 2015, WPC introduced the Qi Extended Power Profile (EPP) specification which supports up to 15 W. EPP is also typically used to charge mobile devices like BPP. Phone companies that support EPP include LG , Sony , Xiaomi , and Sharp . WPC introduced Proprietary Power Delivery Extension (PPDE) to allow phone OEMs to deliver higher than Baseline Power Profile's 5 W or

3105-413: The announcement of the iPhone 16 models and iPhone 16 Pro models, Apple launched the new fast 25W MagSafe charger to feature the woven braided cable design, available in 1m and 2m length options and maintaining the compatibility with the fast 15W Qi2-certified wireless charging. Extended Power Profile (EPP): 15 W Labeled by Samsung as "Fast Wireless Charging" (initially 10 W, introduced on

3174-415: The base Galaxy S21 model, the larger Galaxy S21+ model, the high-end Galaxy S21 Ultra model, and the mid-range Galaxy S21 FE model. Key upgrades over the previous models, in addition to improved specifications, a display with a 120 Hz adaptive refresh rate , an improved camera system supporting 8K video recording (7680×4320) for the first three models, and a super-resolution zoom of 30–100x, for

3243-453: The device, Qi chargers meeting the A2 reference use a PID (proportional-integral-derivative) controller to modulate the delivered power according to the primary cell voltage. Other Qi charge transmitters start their connections at 140 kHz, but can change frequencies to find a frequency with a better match, as the mutual inductance between transmitter and receiver coils will vary according to

3312-622: The first of the S-Series lineup to have S-Pen support, with limited functionality. The S21 series discontinued sales once the Galaxy S22 were released. The phones were released on 29 January 2021. The "Fan Edition" follow-up was unveiled at Samsung's CES 2022 event on 3 January 2022. The S21 FE serves as the successor to the S20 FE, a series of mid-range variants of their corresponding Galaxy S lineup upon launch. The Fan Edition maintains

3381-431: The first three devices was unveiled at Samsung's Galaxy Unpacked event on 14 January 2021. The three devices served as the successors of the 2020 models. All devices' design scheme has changed drastically, redesigning the massive rear-camera module for a slimmer camera module incorporated with the buttons and a uniform appearance for the S21, S21+, and S21 Ultra. The base model possesses a (plastic) polycarbonate back,

3450-533: The following video modes: Still frames extracted from high-resolution footage can act as standalone photographs. The first three S21 phones were released with Android 11 (One UI 3.1) and Google Mobile Services , with Samsung's One UI software. While the S21 FE was supposed to be released with the same Android version and One UI skin, due to it being delayed all devices are now updated with Android 12 (One UI 4.0) instead. They all use Samsung Knox for enhanced device factory reset protection (FRP) security, and

3519-473: The following video modes: Still frames extracted from high resolution footage can act as standalone photographs. The S22 Ultra is the first S series phone to include a built-in S Pen, a hallmark feature of the Galaxy Note series . The S Pen has latency at 2.8ms, reduced from 26ms on Note 20 and 9ms on the Note 20 Ultra and S21 Ultra (although the S21 Ultra had S Pen functionality, it was not included with

SECTION 50

#1732787776559

3588-490: The highest charging rate possibly requires a new charger with separate packaging and shipping with a standalone environmental footprint. Qi (standard) Qi (pronounced / tʃ iː / CHEE ; from simplified Chinese : 气 ; traditional Chinese : 氣 ; pinyin : qì ) is an interface standard for wireless power transfer using inductive charging . The standard allows compatible devices, such as smartphones , to charge their batteries when placed on

3657-512: The lack of a charger and memory card-expandable storage , the latter of which existed on the preceding Galaxy S20. In 2018, Samsung made fun of iPhone 's lack of the same features and an audio connector port in a series of commercials for the Galaxy S9 named "Ingenious", where unhappy iPhone customers confront an Apple Store employee over the lack of functionality that the Galaxy S9

3726-534: The majority of the specifications and design of the S21, with slight discrepancies to meet its lower price value. The phone was originally planned to be released in October 2021 but was delayed due to the 2020–present global chip shortage . The S21 FE was released on 11 January 2022. Its battery had 4500mAh (25W wired and 15W wireless). It was also equipped with a 6.4" 1080x2340 display which included under display fingerprint. The lineup comprises four devices, with

3795-529: The only model of the three devices to attain the change. The base model attains similar specifications to the S20. The S21+ retains the specifications and design of the regular S21, in contrast to minor differences. It serves as the successor to the S20+. The S21 Ultra serves as the high-end model of the S21 series, integrated as the professional version of the lineup, and successor to the S20 Ultra. The phone became

3864-519: The output of the power receiver. These subsystems represent the main functionality of the Mobile Device. As an example from the 2017 version 1.2.2 of the Qi specification (referenced above), the A2 reference Qi low-power transmitter has a coil of 20 turns (in two layers) in a flat coil, wound on a form with a 19 mm inner diameter and a 40 mm outer diameter, with a below-coil shield of soft iron at least 4 mm larger in diameter which gives an inductance of 24 ± 1 microhenries. This coil

3933-532: The phone), and marked the introduction of an 'AI-based co-ordination prediction system'. The S Pen also supports Air gestures and the Air Action system. The S22 phones were released with Android 12 (One UI 4.1) with Samsung's One UI software. Samsung Knox is included for enhanced device security, and a separate version exists for enterprise use. Samsung has promised 4 Android OS upgrades (till Android 16) and 5 years of security updates (till 2027). One UI 5.0

4002-418: The portable device is via a full-wave bridge wired across the 1.6-nanofarad capacitor; the power is typically filtered with a 20-microfarad capacitor before delivery to the charge controller. Other Qi power receivers use alternate resonance modulators, including switching a resistor or pair of resistors across the receiver resonator capacitor, both before and after the bridge rectifier. The WPC published

4071-423: The power transmitter, a resonance modulator consisting of a pair of 22-nanofarad capacitors and a 10 kΩ resistor in a T configuration can be switched across the 1.6-nanofarad capacitor. Switching the T network across the 1.6-nanofarad capacitor causes a significant change in the resonant frequency of the coupled system that is detected by the power transmitter as a change in the delivered power. Power output to

4140-607: The power transmitter. These current changes are monitored and demodulated into the information required for the two devices to work together. In 2011, the Wireless Power Consortium began to extend the Qi specification to medium power. As of 2019, the Medium Power standard currently delivers 30 to 65 W. It is expected to eventually support up to 200 W (typically used for portable power tools, robotic vacuum cleaners, drones and e-bikes). In 2015,

4209-420: The same Base Station and inductively charge until each of its batteries are fully charged. Finally, the system unit in the diagram comprises all other functionality of the Base Station, such as input power provisioning, control of multiple power transmitters, and user interfacing. A power receiver comprises a power pick-up unit, as well as a communications and control unit. Similar to the power conversion unit of

SECTION 60

#1732787776559

4278-548: The standard including Apple , Asus , Google , Huawei , LG Electronics , Samsung , Xiaomi , and Sony . In January 2023, the consortium announced Qi2, which will update the existing standard and include a magnetic connection based on Apple's MagSafe technology. On April 19, 2023, Wireless Power Consortium released the Qi2 standard. Devices that operate using the Qi standard rely on electromagnetic induction between planar coils . A Qi system consists of two types of devices –

4347-536: The standoff distance between transmitter and receiver coils, and thus the natural resonance frequency will vary. Different Qi reference designs have different coil arrangements, including oval coil and multi-coil systems as well as more complex resonance networks with multiple inductors and capacitors. These designs allow frequency-agile operation at frequencies from 105 to 205 kHz and with maximum resonant circuit voltages as high as 200 volts. The Qi power receiver hardware reference design 1, also from version 1.2.2 of

4416-406: The transmitter, Figure 1-1 illustrates the receiving coil as capturing the magnetic field of the power pick-up unit. A power pick-up unit typically contains a single receiving coil only. Moreover, a Mobile Device typically contains a single power receiver. The communications and control unit regulates the transferred power to the level that is appropriate for the subsystems (e.g., battery) connected to

4485-628: The two coils ensures the inductive power transfer is efficient. Base Stations typically have a flat surface – referred to as the Interface Surface – on top of which a user can place one or more Mobile Devices. There are two methods for aligning the transmitting coil (part of the Base Station) and receiving coil (part of the Mobile Device) in order for a power transfer to happen. In the first concept – called guided positioning –

4554-469: The ultra model. The first three phones were released in the United States and Europe on 29 January 2021, while the Fan Edition was released globally on 7 January 2022. The Galaxy S21 FE, S21, S21+, and S21 Ultra launch prices started at $ 699.99, $ 799.99, $ 999.99, and $ 1079.99, respectively. The Galaxy S21 was succeeded by the Galaxy S22 , which was announced on 9 February 2022. The lineup of

4623-440: Was equipped with, a feature which has since been removed from all Galaxy phones. Following Apple , Samsung decided not to include a wall charger or earphones when selling the Galaxy S21 series of smartphones, the reasoning being that "Samsung believes the removal of earphones and charger plugs from our in-box device packaging can help address the growing e-waste problem and unnecessary duplication of these items". However, reaching

4692-457: Was released on 17 October 2022. Testing performed by benchmarking utility Geekbench and media outlet Android Police reported that Samsung's Game Optimizing Service (GOS) would throttle the performance of the device significantly in a number of popular apps while excluding benchmarking utilities; one specific test, using a copy of Geekbench 5 that was modified to look like Genshin Impact to

4761-526: Was succeeded by the Samsung Galaxy S23 series. The Samsung Galaxy S22 series was unveiled on the 8th February 2022 as the successor of the Galaxy S21 series . All devices' design schemes are identical to the 2021 models, with the exception of the S22 Ultra, retaining the individual camera modules excluding the camera bump and rectangular body. The base model maintains a glass back instead of

#558441